Tungsten Rhenium Thermocouple Wires

Specifications GETWICK Tungsten Rhenium Thermocouple Wire

EINECS:2231-143-9

CAS:7440-33-7

Dimensions:0.02-0.08mm

Type:Bare

GETWICK Tungsten Rhenium Thermocouple Wire   Tungsten wire has fiber structure,when the temperature reaches 1500-1600, the tungsten filament would turn,and cause high-temperature sag. To improve the quality of tungsten wire, it is always mixed some additives during sintering procession,such as Na2O ,K2O,SiO2 to enhance the capacity of high-temperature creep resistance and high temperature anti-sag of tungsten wire. In order to improve the tenacity oif tungsten wire and prevent the deformation under high tenperature,it usually added some oxides,such as sillca,alumina,potassium and so on.   Once tungsten wire used at high temperature after recrystallization, it becomes quite fragile.And it can be easily broken under the condition of shaking and vibrating. In some electric light source products require high reliability, in order to prevent fragmentation of lamp filament, tungsten wire often doped 3 to 5% rhenium, known as the tungsten rhenium wire which can make the extension of tungsten-brittle transition temperature decreased to room temperature or below room temperature.   We supply tungsten-rhenium wire doped with rhenium, which has much better ductility and stability than pure tungsten in high temperature   Our products is available in a wide range of forms including nut, screw ,ring ,wire, foil, sheet, rod, strip, plate, tube, alloys according to Standard ASTM AMS ASME MIL DMS JIS GB, etc.   As DNV certified ISO9001:2000 company, we have strict quality control system and provide professional service to our customers around the world. Our customers are in aerospace industry, chemical equipment industry, medical industry and civilian industry in USA, UK, Germany, Sweden and some other countries.